Plastic shopping bags breaking

I just bought a few groceries at Checkers in Little Falls, Roodepoort. The lady packed the plastic bags for me and I placed it in the trolley. Right outside the Checkers I parked the trolley and carried the bags back to my car. The one groceries bag tore immediately, I managed to save my groceries right before the bag completely tore by quickly placing it in the car. The second bag with cool drink in broke at my car and a Coke fell and burst, spraying me with cool drink. I gave the broken bottle to the security guard. I left irritated and embarrassed. At home as I attempted to remove the last bag but it also tore. I had to fetch a crate from inside my home to carry everything inside. What's up with the extremely low quality shopping bags at Checkers lately? Who is doing quality control? Checkers are not living up to their usual standards... This was a horrible shopping experience!